Re: [PATCH v7 03/14] x86/cet/ibt: Add IBT legacy code bitmap setup function

[Dave Hansen]

On 6/7/19 1:06 PM, Yu-cheng Yu wrote:
>> Huh, how does glibc know about all possible past and future legacy code
>> in the application?
> When dlopen() gets a legacy binary and the policy allows that, it will manage
> the bitmap:
> 
>   If a bitmap has not been created, create one.
>   Set bits for the legacy code being loaded.

I was thinking about code that doesn't go through GLIBC like JITs.